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Hurricane Ophelia Public Advisory Number 23
2017-10-14 22:37:04| National Hurricane Center (Atlantic)
Issued at 500 PM AST Sat Oct 14 2017 000 WTNT32 KNHC 142036 TCPAT2 BULLETIN Hurricane Ophelia Advisory Number 23 NWS National Hurricane Center Miami FL AL172017 500 PM AST Sat Oct 14 2017 ...EYE OF HURRICANE OPHELIA PASSING SOUTH OF THE AZORES... ...EXPECTED TO BECOME POST-TROPICAL LATE SUNDAY OR EARLY MONDAY... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...35.9N 23.7W ABOUT 235 MI...375 KM SE OF THE AZORES MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H PRESENT MOVEMENT...NE OR 55 DEGREES AT 28 MPH...44 KM/H MINIMUM CENTRAL PRESSURE...960 MB...28.35 INCHES WATCHES AND WARNINGS -------------------- There are no coastal tropical cyclone watches or warnings in effect. Interests in the Azores should refer to products issued by the Azores Weather Forecast and Watch Center. Interests in Ireland should monitor products issued by Met Eireann, and interests in the United Kingdom should monitor products issued by the UK Met Office. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 500 PM AST (2100 UTC), the clear eye of Hurricane Ophelia was located near latitude 35.9 North, longitude 23.7 West. Ophelia is moving toward the northeast near 28 mph (44 km/h). A continued northeast motion with an increase in forward speed is expected tonight and Sunday, followed by a turn toward the north-northeast Sunday night. On the forecast track, the core of Ophelia will continue to pass south and east of the Azores tonight. Satellite data indicate that maximum sustained winds remain near 115 mph (185 km/h) with higher gusts. Ophelia is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Little change in strength is expected tonight, but the hurricane is likely to become post-tropical by early Monday morning, if not sooner. Ophelia is forecast to remain a powerful cyclone with hurricane-force winds as it approaches Ireland. Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 125 miles (205 km). The wind field of Ophelia is forecast to expand substantially and wind and rain effects in Ireland and the UK are expected to reach the coast well before the arrival of the center. The estimated minimum central pressure is 960 mb (28.35 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical-storm-force winds are possible throughout the Azores through tonight, primarily due to a cold front currently passing through the islands. RAINFALL: Ophelia is expected to produce total rain accumulations of 1 to 3 inches over the central and southeastern Azores through Saturday night. NEXT ADVISORY ------------- Next complete advisory at 1100 PM AST. $$ Forecaster Zelinsky
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